NEW YORK (AP) — Three Russian cosmonauts have arrived at the International Space Station wearing flight suits in yellow and blue colors that match the Ukrainian flag.

The men were the first new arrivals on the space station since the start of the Russian war in Ukraine last month.

Video of one of the cosmonauts taken as the capsule prepared to dock with the space station showed him wearing a blue flight suit. It was unclear what, if any, message the yellow uniforms they changed into were intended to send.

Oleg Artemyev was asked about the yellow flight suits when the newly arrived cosmonauts were able to talk to family back on Earth.

He said every crew chooses its own flight suits, so they are not all the same.

“It became our turn to pick a color. But in fact, we had accumulated a lot of yellow material so we needed to use it. So that’s why we had to wear yellow,” he said.

Artemyev, Denis Matveyev and Sergey Korsakov blasted off successfully from the Russia-leased Baikonur launch facility in Kazakhstan in their Soyuz MS-21 spacecraft at 11:55 a.m. EDT Friday. They smoothly docked at the station just over three hours later, joining two Russians, four Americans and a German on the orbiting outpost.